Air Compressor Motor Single Phase Motor Design Capacitor-Start/Run 4 HP Nameplate RPM 3 480 No of Speeds 1 Voltage 230V AC Full Load Amps 16.8 A 56HZ Frame 60 Hz Hz Motor Service Factor 1 Motor Thermal Protection Manual Ins. Class F Max Ambient Temp 40 Degrees C Duty Cycle Continuous Motor Shaft Rotation CCWSE Motor Enclosure Design Open Dripproof Motor Mounting Type Rear/Foot Motor Mounting Position Horizontal Motor Frame Material Steel Shaft Dia 7/8 in